svl: deploy some asserts in SfxItemPool, those are bugs

Change-Id: Ifa28f3b02640720855a6e40ddd7a5f752904e8bd

svl/source/items/itempool.cxx

@@ -878,7 +878,7 @@ const SfxPoolItem& SfxItemPool::GetDefaultItem( sal_uInt16 nWhich ) const
     {
         if ( pImp->mpSecondary )
             return pImp->mpSecondary->GetDefaultItem( nWhich );
-        SFX_ASSERT( false, nWhich, "unknown which - dont ask me for defaults" );
+        assert(!"unknown which - dont ask me for defaults");
     }
 
     DBG_ASSERT( pImp->ppStaticDefaults, "no defaults known - dont ask me for defaults" );

svl/source/items/poolio.cxx

@@ -695,7 +695,7 @@ SvStream &SfxItemPool::Load(SvStream &rStream)
 
 sal_uInt16 SfxItemPool::GetIndex_Impl(sal_uInt16 nWhich) const
 {
-    DBG_ASSERT(nWhich >= pImp->mnStart && nWhich <= pImp->mnEnd, "WhichId not within the Pool range");
+    assert(nWhich >= pImp->mnStart && nWhich <= pImp->mnEnd);
     return nWhich - pImp->mnStart;
 }